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Method and device for multi-user channel estimation

  • US 6,765,969 B1
  • Filed: 08/22/2000
  • Issued: 07/20/2004
  • Est. Priority Date: 09/01/1999
  • Status: Expired due to Term
First Claim
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1. A method of operating a communication system including at least one receiver and at least one transmitter comprising:

  • computing a plurality of weighting coefficients as a function of time and frequency correlation functions, a noise correlation matrix, and pilot sequences;

    computing a weighting matrix from the weighting coefficients;

    receiving a training sequence from at least one transmitter;

    computing a received data matrix from the training sequence;

    computing an estimated channel gain for each transmitter from the weighting matrix, and the received data matrix; and

    passing each of the estimated channel gains to the receiver to recover a plurality of transmitted data symbols, wherein the estimated channel gains Hj(kd,bd) are computed as a function of Σ

    Y(fp,tp,)qj(d,fp,tp).

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